Home / 21,632.54-32,468.85-13,328.78

Finding the Fourth Proportional to 21,632.54, 32,468.85 and 13,328.78

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Solution

The fourth proportional to 21,632.54, 32,468.85 and 13,328.78 is: 20,005.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,632.54 : 32,468.85 = 13,328.78 : x
  2. Step 2: Convert to fraction form
    21,632.54/32,468.85 = 13,328.78/x
  3. Step 3: Cross multiply
    21,632.54x = 32,468.85 × 13,328.78
  4. Step 4: Simplify right side
    21,632.54x = 432,769,996.16
  5. Step 5: Solve for x
    x = 432,769,996.16/21,632.54
  6. Step 6: Final answer
    x = 20,005.51

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.